Geomagnetic Effects Associated with the High-Altitude Nuclear Explosion -Supplementary Note-
In the previous paper, the writer discussed the geomagnetic effects of the nuclear explosion on 9th July. 1962 and estimated the enhancement of the effective total conductivity in the ionosphere. In the estimation, the dynamo action in the ionosphere was assumed, ignoring the other geomagnetic effects which may be attributed to any other possible mechanisms.
But only the semidiurnal irrotational wind component was taken into consideration.
In this paper, the diurnal component of the wind is too considered, together with the semi-diurnal one. Both components of the wind may be the most predominant in the ionosphere, referring to the many analyses of the geomagnetic diurnal variations on the quiet and/or disturbed days and other geophysical data. Thus a revised distribution of the increment of the conductivity near the time of maximum disturbance is obtained. The geomagnetic records of Oct. 22 and 28, 1962 at Kakioka, Memambetsu and Kanoya are reproduced in Appendix II, without analysis.